LM2576 Series
Block Diagram
V
IN
UNREGULATED
DC INPUT
C
IN
FEED-
BACK
1
INTERNAL
REGULATOR
ON/OFF
ON/OFF
5
+
4
R2
FIXED GAIN
ERROR AMP
R1
1.0k
+
-
COMPARATOR
DRIVER
3 AMP
SWITCH
+
-
2
OUTPUT
L1
V
OUT
+
3
1.23V
52kHZ
BAND-GAP
REFERENCE OSCILLATOR
D1
C
OUT
RESET
THERMAL
SHUTDOWN
CURRENT
LIMIT
GND
L
O
A
D
3.3V, R2 =1.7K
5V, R2 = 3.1K
12V, R2 = 8.84K
15V, R2 =11.3K
For ADJ, Version
R1 = Open, R2 =0Ω
Ordering information
Temperature
Range
-40°
≤
T
A
C
≤
125°
C
Output Voltage, V
3.3
5.0
12
15
ADJ
TO-263
Package Type
MIK2576HVS-3.3 MIK2576HVS-5.0 MIK2576HVS-12 MIK2576HVS-15 MIK2576HVS-ADJ
MIK2576S-3.3
MIK2576S-5.0
MIK2576S-12
MIK2576S-15
MIK2576S-ADJ
MIK2576HVT-3.3 MIK2576HVT-5.0 MIK2576HVT-12 MIK2576HVT-15 MIK2576HVT-
ADJ
MIK2576T-3.3
MIK2576T-5.0
MIK2576T-12
MIK2576T-15
MIK2576T-ADJ
TO-220
BEIJING ESTEK ELECTRONICS CO.,LTD
2
ESTEK [ Estek Electronics Co. Ltd ]
